Home / 13,865.31-19,134.11-7,896.98

Finding the Fourth Proportional to 13,865.31, 19,134.11 and 7,896.98

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Solution

The fourth proportional to 13,865.31, 19,134.11 and 7,896.98 is: 10,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.31 : 19,134.11 = 7,896.98 : x
  2. Step 2: Convert to fraction form
    13,865.31/19,134.11 = 7,896.98/x
  3. Step 3: Cross multiply
    13,865.31x = 19,134.11 × 7,896.98
  4. Step 4: Simplify right side
    13,865.31x = 151,101,548.83
  5. Step 5: Solve for x
    x = 151,101,548.83/13,865.31
  6. Step 6: Final answer
    x = 10,897.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.